Recommended Citation
Haginoya, Satoshi; Thomovsky, Elizabeth J.; Weng, Hsin-Yi; Johnson, Paula A.; and Brooks, Aimee C., "Ultrasonic Doppler as a guide for feline peripheral arterial catheterization" (2024). Purdue University Libraries Open Access Publishing Fund. Paper 230.
http://dx.doi.org/10.1177/1098612X241257857
DOI
10.1177/1098612X241257857
Date of this Version
8-30-2024
Keywords
Blood pressure, dorsal pedal artery, arterial flash, efficacy, technique
Abstract
Objectives
The study aimed to determine if an ultrasonic Doppler-guided technique (UDGT) leads to improved placement efficacy (time, success) of feline dorsal pedal arterial catheters vs the traditional palpation-guided technique (TPT).
Methods
A total of 26 adult, client-owned cats requiring sedation or general anesthesia for any reason, aged >12 months and weighing >3.0 kg, and with Doppler blood pressure measurements of at least 80 mmHg were enrolled. Each hindlimb was randomly assigned for dorsal pedal arterial catheterization using either the UDGT or TPT. With the UDGT, the location of the artery was identified by an audible sound using the Doppler. Successful catheter placement was confirmed by visualization of an arterial pressure waveform using a transducer and monitor system attached to the catheter. The Kaplan–Meier method and log-rank test were used to compare the two techniques.
Results
The overall proportion of successful arterial catheterization was 17% (9/52): 19% (5/26) via UDGT and 15% (4/26) via TPT. Among successful arterial catheterizations (n = 9), the mean time to catheterization was 339 ± 198 s: 328 ± 237 s (n = 5) with UDGT and 353 ± 171 s (n = 4) with TPT. The log-rank test showed the two techniques were not significantly different in likelihood of successful arterial catheter placement or time to successful catheterization (P = 0.698). An arterial flash occurred in 62% (32/52) of the limbs, 58% (15/26) with the UDGT and 65% (17/26) with the TPT. Complications (self-limiting bruising, hematoma formation) were observed equally between UDGT (3/26 limbs) and TPT (3/26 limbs) in six cats.
Conclusions and relevance
The UDGT did not improve the efficacy of catheter placement compared with the TPT. Few complications were associated with arterial catheterization.
Comments
This is the publisher PDF of Haginoya S, Thomovsky EJ, Weng H-Y, Johnson PA, Brooks AC. Ultrasonic Doppler as a guide for feline peripheral arterial catheterization. Journal of Feline Medicine and Surgery. 2024;26(8). This article is distributed under a CC-BY license, and is available at DOI: 10.1177/1098612X241257857.